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2031011140 = 225101550557
BaseRepresentation
bin111100100001110…
…1100010101000100
312020112201001111211
41321003230111010
513124414324030
6533311341204
7101221211164
oct17103542504
95215631454
102031011140
119524a8804
12488221804
13264a14652
14153a4c5a4
15bd48b12a
hex790ec544

2031011140 has 12 divisors (see below), whose sum is σ = 4265123436. Its totient is φ = 812404448.

The previous prime is 2031011093. The next prime is 2031011153. The reversal of 2031011140 is 411101302.

It can be written as a sum of positive squares in 2 ways, for example, as 1335317764 + 695693376 = 36542^2 + 26376^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2031011140.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50775259 + ... + 50775298.

It is an arithmetic number, because the mean of its divisors is an integer number (355426953).

Almost surely, 22031011140 is an apocalyptic number.

2031011140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2031011140 is an abundant number, since it is smaller than the sum of its proper divisors (2234112296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2031011140 is a wasteful number, since it uses less digits than its factorization.

2031011140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101550566 (or 101550564 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 2031011140 is about 45066.7409516153. The cubic root of 2031011140 is about 1266.3996111359.

Adding to 2031011140 its reverse (411101302), we get a palindrome (2442112442).

The spelling of 2031011140 in words is "two billion, thirty-one million, eleven thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 101550557 203101114 406202228 507752785 1015505570 2031011140